ClientExec is a great billing and support app, that's intended to help the management of small to mid-sized hosting firms. It's the connection between the front- and the back-end and it makes it possible for a client to acquire a web hosting package online and then to have their account activated. ClientExec will make it a piece of cake for you to generate invoices, to set prices for hosting plans as well as domains or to view performance stats. Every time you use the app, you can include a payment processor, a domain name registrar or an SSL service provider in several easy steps. ClientExec also comes with an inbuilt ticketing system, that will help you provide support to your clients. If you decide to start your own reseller website hosting business and other people to help you in this venture, you can give them separate levels of access and each level will be able to access different sections and options in ClientExec.